Size and Shape

Diameter: Generally, the diameter of drilled mirrors can range from a few millimeters to several hundred millimeters, depending on the application requirements. For example, some products offer a diameter selection of 10 - 50mm.

Shape: Drilled mirrors are usually circular, but can also be customized into other shapes according to specific needs.

Aperture and Hole Position

Aperture: That is, the size of the drilled hole, which can be customized according to the customer’s requirements. The size of the aperture will affect the reflective area of the mirror and the optical path design.

Hole Position: The position of the hole is also customizable. It is usually located at the center or off - center of the mirror, depending on the layout requirements of the optical system.

Reflectivity and Wavelength

Reflectivity: The reflectivity of a drilled mirror is an important parameter, which determines the mirror's ability to reflect incident light. Reflectivity is usually related to the wavelength and coating material. Appropriate coatings can be selected according to the needs to improve the reflectivity within a specific wavelength range.

Wavelength Range: The working wavelength range of the mirror is also a key parameter, as different optical systems may have different wavelength requirements.

Optical Performance

Wavefront Distortion: It describes the aberration caused by the imperfect surface shape of the mirror. Low wavefront distortion means higher imaging quality.

Surface Roughness: It refers to the smoothness of the mirror surface, which affects the reflection effect and scattering loss.

Material and Coating

Material: Drilled mirrors are usually made of optical glass or other highly transparent materials to ensure good optical performance.

Coating: To improve the reflectivity or achieve selective reflection at specific wavelengths, the surface of the mirror is usually coated with one or more layers of optical thin films.

Mechanical Performance and Durability

Mechanical Strength: The mirror needs sufficient mechanical strength to withstand the stress during installation and use.

Durability: It includes properties such as scratch resistance and corrosion resistance, ensuring that the mirror maintains good optical performance during long - term use.